hmm, i would probably avoid it. If you do end up doing it however, get it done by a professional.

Be careful with solvents, although Aluminium doesn't rust like steel, it is a reactive metal and is susceptible to chemical attack. The only reason why it doesn't is because it creates an oxide layer on the outer surface which protects it from corroding. (Correct me if i'm wrong anyone, i cbf researching, this is just what i remember from doing a materials engineering unit)

out of curiosity, what frame is it?